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No. 244,439.V Patented July 19,1881.

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11j. DUFPY avJyANDBNBURG y HUB'BORING MACHINE: 4 No. 244,439. Y Patented July 19,1881. j

g N Pi l WwW/besa.' 'l v i lullen/50;?.- l g V il," @fk/@7M- f QMZW PATENT i OFFICE HUGH DUEEEY AND JESSE vANDEnBUEeH, E ooETLAND', NEW YORK.

HUB-BORING MACHINE. i

SPECIFICATION forming part of Letters Patent No.. 244,439, dated July 19, 1881.

' l ApplicationledMai-ch 31, (No model.)

' To all whom it may concern.-

Be it known that we, HUGH DUFEEY and JESSE VNDENBURemcitizensof'the UnitedY act description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and

to the letters or figures of reference marked thereon, which formv a part of this specification.

In the drawings, Figure l represents a side view of the apparatus and its parts. Fig. 2 represents a section of the cutter. Fig. 3 represents a side elevation of the front of the device for clamping and securin g the wheel while being bored.V Fig. 4 represents a back eleva* tion of said device. Fig. 5 represents a section of the cutter. Fig. 6 represents another section of the cutter.

Like letters of several figures indicate same parts.

The object and purpose of-our invention .or

vimprovements are to bore out the hubs of Wheels usedon wagons or vehicles, so thatV the iron boxes can be easily put in the hubsaccurately and uniformly; also, to so bore ithehubs very quickly'and readily by machinery, dispensing with hand-work.

Our invention consists in the apparatus or devices hereinafter described and herein shown, whereby we. accomplish the said object and purpose; also,'in the arrangement and combination of thelparts composing the apparatus; also, in the internal air-blast, preventing interference from the detritus of the boring instruments. i

In said drawings, A and B represent two similar standards securel y bolted to a base, as shown.

C, G', C2, and C3 are journals in said standards for shafts D and E to revolve in.

F and F arepulleys on shafts, to which motion is communicated.

G and'G' arelevers or slide-bars for sliding the shafts D and E forward.

H represents the device or apparatus for holding the wheel while the hub is being bored.

The crank I, with its rod, having rightand left screws J and J',brings the Shoulders K and K together, and centers and holds the wheel. The hub being brought in opening L, in accurate position to be bored, His securely `.held in position by being firmly bolted, as

shown. The shaft D is hollow for a blast of air to pass through it.

M is a flexible'tube for conveying the air to VD from.the fan or blast.

N represents the cutter, which consists ofthe instrument shown in Fig. 2, having knives or cutting-instruments a a placed on'its surface, as shown. These cutters. are shown better iu Figs. 5 and 6. The chips and shavings pass into N, and are blown out by the blast. rIhere are cutters on shoulder b.

The operation of the machinery is as follows: VThe wheel is brought into position and held by the device H. Then by lever G the auger or bit O is brought forward and forced to bore through the hub, making a hole of proper diameter. Then by lever G the auger 0 is pulled back. Then by lever G the cutter N is brought forward and passed intoV the hole in the hub made by O, giving to said hole its shape. The chips and shavings pass within the cutter N, and are driven out by the air-blast; also, the shavings and chips formed by the auger O are driven out of the grooves of said auge-r() by said blast. The wheel is then released by I, and the hole in the hub is of the correct form to receive the box. By the internal blast all clogging and trouble from chips and shavings is avoided, and the cutting-instruments are kept cool.

What we claim is- 1. In a hub-machine, the inclined cutter or reamer, as shown, having a series of knives upon the sides thereof, and provided with a central longitudinal tube having iiexible connection with an air-blast,said blast being adapted to blow the chips and cuttings away from the parts to prevent clogging, as set forth.

2. The inclined cutter N, having hollow center, combined with an air-blast and flexible connections, with a primary borer, O, and intermediate clamp, the said blast serving not only to remove the chips from the cutter N, but also to remove the same from the wormgroove in the borer simultaneously, as specified.

3. In a hub-boring machine, the tapering cylindrical reamer N, having central longitudinal aperture P, the plane knives upon the surface, and passages leading therefrom to the interior to allow the chips to pass within the current of the air-blast and be blown out, substantially as and for the purposes set forth.

4. The combination of the holder H, right and left screw J J', the clamp L, with the primary borer E O, the nishing-cutter D N,

the levers G G', and the air-blast connections,

all combined and arranged to serve as and for the purposes set forth.

HUGH DUFFEY. JESSE VANDENBURGH.

Witnesses:

M. STANLEY BIERCE, JOHN W. SUGGETT. 

